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NFG Forums => RGB + Video Discussions => Topic started by: Fudoh on January 19, 2009, 06:00:38 AM

Title: RGBs to Component - JROK vs. Jeff Kurtz's board ?
Post by: Fudoh on January 19, 2009, 06:00:38 AM
Is there some general consens which of the two boards is better ??

And does anybody by any chance have the measurements of the two boards on hand ?

Thanks,
Tobias
Title: Re: RGBs to Component - JROK vs. Jeff Kurtz's board ?
Post by: ken_cinder on January 19, 2009, 06:51:59 AM
Just given the fact that JROKs boards offer adjustable RGB level control where the Neo Bitz from Jeff do not would make me choose JROKs board.

Jeff's boards are designed with Neo users primarily in mind, JROKs boards are designed as general purpose for any arcade board (Or whatever else).
Title: Re: RGBs to Component - JROK vs. Jeff Kurtz's board ?
Post by: eastbayarb on January 22, 2009, 08:09:56 PM
can i use a JROK to convert SCART RGB to component (assuming I correctly wired a SCART connector to the JROK's RGB in) ?
Title: Re: RGBs to Component - JROK vs. Jeff Kurtz's board ?
Post by: GUTS on January 23, 2009, 06:11:03 AM
I have a Jrok and love it, the measurements are around 2 1/2 inches by like 4 inches I believe. Maybe a bit smaller, it's about the same size as a Genesis cartridge. I use it for Genesis & Sega CD, Saturn, and Dreamcast. I'm working on getting the SNES and PC Engine working with it right now. The Sega systems look awesome on it even on my HDTV.
Title: Re: RGBs to Component - JROK vs. Jeff Kurtz's board ?
Post by: eastbayarb on January 23, 2009, 06:20:03 AM
do u use the same jrok for all your systems? if so, how are they connected to the jrok?
Title: Re: RGBs to Component - JROK vs. Jeff Kurtz's board ?
Post by: GUTS on January 23, 2009, 09:29:21 AM
Yeah for everything except the PCEngine which I couldn't get to work. Another guy managed to get it to work fine so I might try again- the colors were all off on mine and building an amp had no effect, but the other guy reported the same problems and eventually got it to work by tapping the chip directly (which I can't remember if I did or not).

I'm having sync problems with my snes right now, but I'm confident I'll figure it out eventually.
Title: Re: RGBs to Component - JROK vs. Jeff Kurtz's board ?
Post by: eastbayarb on January 23, 2009, 09:46:16 AM
how do your systems physically connect to the jrok? like what kind of cables do your systems use? I would love to be able to wire up a female scart rgb connector to a jrok since all my systems utilize scart cables. do u mind showing a pic of your jrok and how it connects to one of your systems? my duo-r I bought rgb modded and it's got an amp in it



Quote from: GUTS on January 23, 2009, 09:29:21 AM
Yeah for everything except the PCEngine which I couldn't get to work. Another guy managed to get it to work fine so I might try again- the colors were all off on mine and building an amp had no effect, but the other guy reported the same problems and eventually got it to work by tapping the chip directly (which I can't remember if I did or not).

I'm having sync problems with my snes right now, but I'm confident I'll figure it out eventually.
Title: Re: RGBs to Component - JROK vs. Jeff Kurtz's board ?
Post by: GUTS on January 23, 2009, 12:07:07 PM
I just used Lawrence's 9-pin d-sub pinout for everything and made my own cables out of lan cables. On Saturn and Dreamcast I just hacked up a Scart cable and fitted a d-sub connector on the other end with the proper pinout, on Genesis I mounted a d-sub directly to the back of the system.

I don't have a pic, but I just mounted the Jrok in a project box from radio shack and mounted the d-sub on that and everything plugs into it that way.
Title: Re: RGBs to Component - JROK vs. Jeff Kurtz's board ?
Post by: yamazaka2005 on March 04, 2009, 04:04:04 AM
which ic dose her use ?lm6172 ?lt1399? who can tell me?thanks
Title: Re: RGBs to Component - JROK vs. Jeff Kurtz's board ?
Post by: yamazaka2005 on March 04, 2009, 04:08:42 AM
(http://blackevilweredragon.spymac.com/genyprpbjrok.jpg)

http://jrok.com/hardware/RGBv4/v4_f_bot.jpg(http://jrok.com/hardware/RGBv4/v4_f_bot.jpg)


CXA 1645 USE? RGBs to Component  ic use which one? lm6172?lt1399?
Title: Re: RGBs to Component - JROK vs. Jeff Kurtz's board ?
Post by: yamazaka2005 on March 04, 2009, 04:13:22 AM
http://pics.neobitz.com/neobitz_standard.jpg


(http://pics.neobitz.com/neobitz_standard.jpg)


LM1881 AD724 ,RGBs to Component I think hi ues lt399?
Title: Re: RGBs to Component - JROK vs. Jeff Kurtz's board ?
Post by: duo_r on March 21, 2009, 06:16:31 AM
this was Svideo that was giving you issues? I hear Jrok does not work well with Svideo, but that Component looks good with Jrok. Anyone have feedback with Neobitz and Duo?

Quote from: GUTS on January 23, 2009, 09:29:21 AM
Yeah for everything except the PCEngine which I couldn't get to work. Another guy managed to get it to work fine so I might try again- the colors were all off on mine and building an amp had no effect, but the other guy reported the same problems and eventually got it to work by tapping the chip directly (which I can't remember if I did or not).

I'm having sync problems with my snes right now, but I'm confident I'll figure it out eventually.
Title: Re: RGBs to Component - JROK vs. Jeff Kurtz's board ?
Post by: Gamester on March 21, 2009, 06:55:28 AM
I am using a Neobitz + a JROK sync cleaner in my super gun and so far it has been pretty compatible with all outputs.  I have tested arcade boards Neo Geo MVS, TMNT, TMNT: Turtles in Time, and Battletoads and they all look great.  The JROK sync cleaner fixed a lot of compatibility issues thatI had running the Neobitz alone.  For example, before the sync cleaner my TMNT had only red and orange colors displayed and now with the JROK sync cleaner it displays great on all outputs.
Title: Re: RGBs to Component - JROK vs. Jeff Kurtz's board ?
Post by: XianXi on May 05, 2009, 05:44:29 PM
If you are looking to only use the component output I suggest the Neobitz with a JROK Sync cleaner. The picture on the component circuit is much clearer. On the JROK the component seems to be over saturated, most noticeable on CPS2 games. Even after adjusting the onboard pots the picture is just not changing much.